Home / 31,705.48-43,743.68-18,274.92

Finding the Fourth Proportional to 31,705.48, 43,743.68 and 18,274.92

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Solution

The fourth proportional to 31,705.48, 43,743.68 and 18,274.92 is: 25,213.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,705.48 : 43,743.68 = 18,274.92 : x
  2. Step 2: Convert to fraction form
    31,705.48/43,743.68 = 18,274.92/x
  3. Step 3: Cross multiply
    31,705.48x = 43,743.68 × 18,274.92
  4. Step 4: Simplify right side
    31,705.48x = 799,412,252.51
  5. Step 5: Solve for x
    x = 799,412,252.51/31,705.48
  6. Step 6: Final answer
    x = 25,213.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.